XML 21 R24.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Adjusted Cost and Estimated Market Value Available-for-Sale Investment (Table Text Block) | 6 Months Ended
--- | ---
Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract] |
Adjusted Cost and Estimated Market Value of Available-for-sale Investments | The adjusted cost and estimated market value of available-for-sale investments at September 30, 2013, by contractual maturity, were as follows:
|  | Amortized Cost |  | Estimated Market Value
|  | (Unaudited)
|  | (In thousands)
Due in one year or less | $ | 25,259 | $ | 25,520
Due after one year through five years |  | 186,894 |  | 195,909
Due after five years through ten years |  | 316,233 |  | 320,354
Due after ten years |  | 507,909 |  | 510,225
|  | 1,036,295 |  | 1,052,008
Mortgage backed securities |  | 5,613 |  | 5,755
Redeemable preferred stocks |  | 18,440 |  | 18,449
Common stocks |  | 37,356 |  | 38,128
| $ | 1,097,704 | $ | 1,114,340

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration